What to do next??

Keep feeding. No need to start flushing until buds look almost ready and at that point you're probably still looking at 7-14 days from chopping - plenty of time to flush. They really take longer than you think to finish up and change from translucent to cloudy and amber. 😁🌱👍

I would flush, feed for another few weeks, then do the final flush. If you are getting new white pistils that tells me new calyxes are growing, and who doesnt want chunkier buds. When you scout for trichomes make sure your not checking the newest growth if calyxes keep stacking or you notice foxtailing. They are looking very nice so far, so I'm sure the harvest will be fantastic 👍

I personally would just feed her ph'd water for remainder of the grow let her use up her stored nutrients 💚🙏